Oscar guttmann



(No Model.)

O.GUTTMANN.'

Patented Sept. 26, 1893-.

VL i i a I /-/l a 1 r (M i a i .fli I a f a A A y c n 3f WITNESSES: w

\ws w A TTORNE K STATES 'ATENT FFICE.

APPARATUS FORICONCENTRATOING LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 505,520, dated September 26, 1893.

Application filed June 5, 1893. Serial No. 476,604. (No model.)

To all whom it may concern.-

Be it known that I, OSCAR GUTTMANN, a subject of the Emperor of Austria-Hungary, residing. at Dunster House, Mark Lane, London, E. 0., England, have invented certain new and useful Apparatus for Concentrating and Distilling Liquids, of which the following is a specification.

My invention relates to apparatus for concentrating and distilling liquids, and has for its object to provide a simple and effective apparatus easily accessible in all its parts for cleaning.

The principal advantages/of my apparatus are the continuous working of the same, in which a constant, uniform, shallow and wide flow of liquid toward the greatest heat is obtained, the provision of sufficient space above the flow of liquid for conducting the constantly arising vapors in a direction opposite to the flow of the liquid to enrich the said va pors as they pass over the liquid, and to obtain a uniform temperature of the vapors as they are drawn from the apparatus, which is of great importance in the concentration of sulphuric acid and other liquids.

My invention consists of an apparatus for concentrating liquids comprising a furnace, zig-zag flues located above said furnace, in which are located one or more series of pipes connected with one another to form aserpentine pipe, in which the liquid is treated, supply tanks located above said flues and connected with one another and the inlet of the serpentine pipe by siphons.

My invention further consists of the construction and arrangement of the serpentine pipe and its connections, and of details hereinafter more fully described and pointed out in the claim.

The invention will be more fully understood, taken in connection with the accompanying drawings forming part hereof, and in which Figure 1, is a longitudinal section of my improved apparatus, showingthefurnace, zig-zag flues, the serpentine pipe or pipes therein and also the supply tanks. Fig. 2, is a view showing the connection of pipes constituting the serpentine pipe. Fig. 3, is a top view of one end of a pipe, and showing the fastening of the end cover of the said pipe. Figs. at to 7,

show several cross-sections of pipes, which may advantageously be employed, and Figs. 8 to 10, show details of end connections of pipes or pipe outlets of a serpentine pipe, to be employed in my improved apparatus.

Referring now to the drawings for a .further description of my invention, and more particularly to Fig. 1, L is a furnace provided with the grate Z and fire door Z.

M, is the flue chamber formed by the partitions mm into a zig-zag shaped continuous flue, delivering the products of combustion, 850., to a chimney m.

The front and rear walls 7c, are provided with doors 4 for a purpose to be hereinafter described.

On top of the flue chamber M, are located two or more supply tanks n for storing and preparing the liquid to be concentrated, and these are connected by siphons n to supply the tank connected with the serpentine pipe A by the siphon n with liquid of suitable temperature. The serpentine pipe A, which may be made of any desired material, as glass, metal, porcelain, earthenware, &c., is composed of the horizontally or nearly so disposed pipes a,which are connected with one another at opposite ends and surfaces, by the cups [2 and elbows c; and rest upon cross barsz' built in the walls of the chamber M. The elbows 0 rest in the cups 1) and are cemented or otherwise tightly held in position by packing, 850., as shown in section in Fig. 2. The end of each pipe a, is provided with a detachable cover 6, held in position by the yoke fand wedges g and h as shown in Fig. 3. Other similar devices may be provided however, to allow of ready removal and securingin place the covers 0, to allow for convenient cleaning of the pipes at and elbows c.

The cross-section of the pipes or may be varied and suited to the requirements of the different liquids to be concentrated. In Fig. 4, an ovalshaped pipe orconduit has been shown, in Fig. 5, a circular conduit or pipe, in Fig. 6, a rectangular and in Fig. 7 a pipe of semicircular cross-section with a corrugated bottom has been shown, all designed and selected to most effectually evaporate the liquid to be concentrated and contained therein.

The operation of the apparatus is as follows: A fire is built in the furnace L, the resulting heat passing the zig-zag flue M, surrounds and heats the serpentine pipe A. The liquid to be concentrated, distilled or vaporized, is fed by the sipon n into the inlet 0 of the serpentine pipe A, and traverses this in a shallow and Wide flow or stream in opposite direction to the flame or heat issuing from the furnace L, whereby the liquid traversing the said pipe A is evaporated. The vapors are drawn from the serpentine pipe A, by an exhauster s, operated by steam or air, &c., to force the said vapors into a suitable condensing apparatus for further treatment. The liquid not evaporating in the serpentine pipe A, is collected in a suitable vessel q, communicating with the lowest end of the serpentine pipe A, by the bent pipe 19 to be cooled and recharged into the supply tanks 91.

To clean the herein described apparatus for concentrating liquids, the doors 7" are removed from the flue chamber M, and the covers e are removed from the pipes at which constitute the serpentine pipe A, by loosening the wedges g and h and the yokef. Sediments or any matter accumulated in the pipes or elbows, &c., may now easily be removed, and the pipes thoroughly Washed, after which the covers e and doors 1" are again replaced and the apparatus put in operation.

In Fig. 9, is shown a modified outlet 25 attached to the lowest end of the serpentine pipe A. By the use of this outlet, the exhauster 3 may be dispensed with, and hot air, steam, fire-gases, carbonic acid, 850., is blown into the said outlet 25 and pipe A, in a direction, which is opposite to that of the flow of the liquid, which latter runs off through the depending orifice formed on the said outlet, to lead the outfiowing liquid into a suitable receptacle as q.

Having thus described the nature and objects of my invention, whatI claim as new, and desire to secure by Letters Patent, is

An apparatus for concentrating liquids, comprising a furnace, a zig-zag shaped flue above said furnace, a serpentine pipe within said flue, supply tanks for the liquid to be concentrated on top of the said flue and connected with one another, a siphon connecting one of the supply tanks with the upper end of the serpentine pipe, an outlet pipe connected to the lower end of the serpentine pipe 

